fix(sticky): restore zoom-aware preset creation and live editing sync

frontend/src/canvas/tools.ts

@@ -14,7 +14,7 @@ import { DrawingSprite } from './sprites/DrawingSprite';
 import type { DrawingObject } from './scene-format';
 import { TextEditor } from './TextEditor';
 import { clampTextFontSize } from './textLimits';
-import { DEFAULT_STICKY_PRESET, STICKY_FONT_MAP, STICKY_WIDTH_MAP } from './stickyPresets';
+import { DEFAULT_STICKY_PRESET, getStickyWorldMetricsForPreset } from './stickyPresets';
 
 export enum ToolType {
   SELECT = 'SELECT',
@@ -324,8 +324,10 @@ export function activateTool(
         const rect = container.getBoundingClientRect();
         const world = viewport.toWorld(e.clientX - rect.left, e.clientY - rect.top);
 
-        const cardW = STICKY_WIDTH_MAP[DEFAULT_STICKY_PRESET];
-        const cardH = 60; // auto-computed by StickySprite
+        const zoom = viewport.scale.x;
+        const presetMetrics = getStickyWorldMetricsForPreset(DEFAULT_STICKY_PRESET, zoom);
+        const cardW = presetMetrics.width;
+        const cardH = screenToWorld(60, zoom, 40, 200);
         const stickyData = {
           id: crypto.randomUUID(),
           type: 'sticky' as const,
@@ -342,7 +344,7 @@ export function activateTool(
           name: '',
           visible: true,
           text: '',
-          fontSize: STICKY_FONT_MAP[DEFAULT_STICKY_PRESET],
+          fontSize: presetMetrics.fontSize,
           fontFamily: 'Inter, system-ui, sans-serif',
           fill: '#ffd43b',     // default yellow
           textColor: '#1a1a1a',
@@ -374,6 +376,8 @@ export function activateTool(
               }
               ctx.broadcastElements?.([item.id]);
               ctx.onChange();
+            }, (resizedItem) => {
+              ctx.scene.updateSpatialEntry(resizedItem);
             });
             ctx.textEditor!.clearText();
           });